DE2315097A1 - PHOTOGRAPHIC CAMERA - Google Patents

Description

The invention relates to a photographic camera with a reciprocating transport handle which is used for film transport is to be actuated twice for a film, preferably assembled in cassettes, with a perforation hole per film having, wherein a button falling into a perforation hole controls a locking member in such a way that that it ends the film transport by falling into a movable part during film transport. The invention lies the task underlying to ensure that a user can see after a film transport hub whether he is only the has already completed the first or the second transport stroke.

To solve this problem it is proposed that control means are provided through which the transport handle according to deir first transport stroke is prevented from completely returning to its rest position and only after the second transport stroke to complete expiration is released in their rest position. A "special simple and advantageous embodiment is that the transport handle is a slide with two drive elements, is preferably racks, with a

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Drive element only effective in the transport direction Driving clutch can be coupled to the film reel drive and the other drive element is a control disk in every direction of movement, the locking member at the end of the film transport the control disk in JPiImtransportrichtung locks. Here it is possible that a control pin is provided on the control disk, in its path of movement a lever that is resiliently tensioned with the locking member as a function of the position of the locking member can be swiveled in, the lever being resilient in the direction of film transport · the control pin evades, but when moving in the opposite direction, the control disc and the handle before reaching their rest position

and
blockieit / wherein the lever is pivoted into the blocking position by the locking member when the locking member is out of engagement with the control disk.

This configuration not only ensures that the return paths of the transport handle in the two transport lifts are different and so a user can see which stroke he has just made, but it will be at the same time achieved that the locking member at the end of the film transport after the return of the transport handle in their rest position is brought out of engagement with the disc and thus a lifting of the locking member when the shutter is operated, there is no shaking

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risk is reduced. In addition, a "particularly simple and part-saving switching of a Achieve socket for cube-shaped flash lamp holder by that the film spool is in engagement with the rack standing toothed segment and a ratchet drive is in operative connection, a control cam with the toothed segment is connected, which controls a ratchet drive for a rotatable socket for cube-shaped flash lamp holder. The aim here is that the ratchet drive is behind the next switching element of the only after every second transport stroke Socket falls due to the shortened return path of the handle after the first transport stroke.

Further advantages and details of the invention are explained in more detail with reference to drawings. Show it

1 shows a view of a camera according to the invention,

pulled out before the release, dashed after

the release,
Fig. 2 the camera of Figure 1 dashed during

of the first clamping stroke and pulled out after

the first clamping stroke,
3 shows the camera according to FIG. 1 at the end of the second

Clamping stroke before the clamping handle returns in

the rest position.

409841/0447

In a camera 100 designed as a slide 1 transport handle is provided, the two racks 1a and 1b includes. The rack 1a meshes with a toothed segment 3, which is rotatable about an axis 101, and which has a radial curve 3a a pawl 4 under the action of a spring 102 carries «, the spring 102 pulls the pawl 4 against a toothed wheel 5) which is also rotatable about the axis 101 and with the Reel drive gear 2 of a film cassette 103 being inserted of the cassette can be brought into engagement in the camera 100. A pawl 8 resiliently rests on the curve 3a and is used for switching a rotatable socket 7 for cube-shaped flash lamp holder by 90 ° each.

The function of the parts just described is basically as follows:

When the slide 1 is moved in the direction of arrow 104, the toothed segment 3 is moved counterclockwise and takes the gear 5 counterclockwise via the pawl 4 with so that the film reel 2 is driven for film transport. This first clamping stroke only takes place a partial transport of the film. Then the slide 1 goes against the direction of the under the action of a spring 105 Arrow 104, but cannot return to its starting position for reasons to be explained later. Here the pawl 4 ratchets over the gear 5j without the latter would move clockwise. At the second stroke of the slide

409841/0447

PF 802 / MP 1318 231 b Ü 9

in the direction of arrow 104, the slide 1 and with the gears 3 »5» 2 are only moved "until a picture step ends and the transport is blocked by means to be described. Then slide 1 goes completely in its starting position against the direction of the arrow 104 back.

The first stroke of the slider 1 via the curve 3a "the pawl 8a, and a pin 7a flashcubes version ⁿ is rotated by 90 °. Since the slide 1 does not return to its starting position after the first stroke, the pawl 8 cannot fall behind the next switching pin 7a during the second transport stroke, so that the holder 7 does not rotate during the second transport stroke. Only before the next film transport, before which the slide 1 returns to its starting position, can the pawl 8 engage behind the next switching pin 7a. There is therefore only one rotation of the mount 7 with every first switching stroke.

To determine the image step in a film transport process consisting of two strokes of the slide 1 a toothed ratchet wheel 10 is provided which is connected to a pinion 9 and with it about an axis 106 is rotatable. The pinion 7 meshes with the rack 1b of the slide 1. On the disk 10 is a switching pin 10a stored.

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In a known manner, a button 11 is provided with the perforation of the film 107, which has a perforation hole for each image step, interacts. This button 11 is rotatable about an axis 108 together with a feeler slide 13 and displaceable with respect to the axis 108 via a slot 11a. In addition, button 11 and slide switch 13 are against each other displaceable in parallel, for example via a second pin-and-slot connection, not shown. On the tactile slide 13 two control tabs 13a and 13b are arranged. In the film transport direction next to the button 11 is a run-up slope 18 at the Filmbahn.

A locking member 12 is rotatable about an axis 109 together with a control member 16. Both links 12, 16 are clamped to one another via a spring 100 and spacer nose 12g. The locking member 12 includes a retaining lug 12a, a notch 12b, a locking tooth 12c, a bevel 12f, a bevel 12e, a locking tab 12d and a control tab 12h. The control member 16 includes an edge 16a. There is also a resilient retaining lever 17 with a stop 17a and one of a moving shutter member 15 or the like controlled lever 14 is provided. The lever 14- is rotatable about the axis 111 and is under the action of a Spring 112 pulled against disk 10. The lever 14 comprises a ratchet 14a and a tab 14b. The locking member 12 and the button 11 are clamped together by a spring. _O

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The function of the arrangement is now based on FIG the following:

If the shutter is released, member I5 moves from the position shown in solid lines to the position shown in dashed lines according to FIG. 1. The ratchet tooth 14a falls in a tooth of the disc 10 and locks it against clockwise rotation, while the tab 14b of the swings pulled out into the position shown in dashed lines. When the shutter is released, the button 11 is in one Perforation hole. The retaining lug 12a, however, engages the control tab 13b and presses the button 11 via the tactile slide 13 away from the edges of the perforation hole so that on the Movie ΙΟ? no tension or pressure is exerted. In these Position, the locking member 12 is pressed by the pin 10a of the disc 10 when the slide 1 is in its position shown in FIG shown rest position has returned. The ratchet tooth 12c is out of engagement with the disk 10. In FIG The position of the arrangement after a film has been transported and before the shutter is released and shown in dashed lines the position after the shutter has expired, i.e. before a new film transport.

During the first transport stroke of the slide 1 in the direction of arrow 104, on the one hand, in the manner already described the film 107 is transported by one piece. In doing so, the Film the button 11 in the film transport direction until the

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Button 11 on the ramp 18 from the perforation hole is excavated under tension of the spring 113. At the same time, the control pin 10a has moved counterclockwise and the locking member 12 released. Its edge 12d has supported itself on the tab 14b, so that the ratchet tooth 12c cannot fall into the pane 10. Pushbutton 11 and pushbutton slide I3 jump against the direction of film transport back to the stop 19 · Finally, the link 15 lifts the known clamping means, not shown Lever 14 from the return stop position shown in dashed lines into the position shown in solid lines according to FIG. 2, the member 15 preventing the lever 14 from collapsing again locks in the disc 10. The edge 12i is now supported on the stop 13a. In Figure 2 is a position during the first transport stroke drawn.

Then the slide 1 is released and runs against the direction of arrow 104 until the control pin 10a of the Disc 10 runs onto the edge 16a of the lever 16. Thus, the first return of the slide 1, as already described, is ended before the slider 1 reached the rest position.

Now comes the second transport stroke of the slide 1 in the direction of the arrow 104. After about one image step, the Pushbutton 11 into a perforation hole and a piece of the moving film is taken with it until the tab 13a from the edge 12i

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slides off and the recess 12b falls counterclockwise against the tab 13a. Here, the ratchet 12c falls into the disc 10 and locks the movement of the disc counterclockwise. The second transport stroke is thus ended. Dab31, however, the lever 16 was also removed from the drain path of the pin 10a pivoted while the GIi ^. 1, v the nose 14-a from falling into the disk 10 is prevented. This position is shown in solid lines in FIG.

If the slide 1 is now released, the slide and the disk 10 run counter to the direction of the arrow 104 clockwise back to their rest position. Finally, the control pin 10a strikes the tabs 12h and the locking member 12 pivots counterclockwise so that the retaining lug 12a the button 11 in the perforation hole leaves, but stands out from its edges. In addition, the ratchet tooth 12c is lifted off the disc 10, while the tab 12d lies outside the range of motion of the lever 14. Thus, the one in Figure 1 is pulled out drawn position reached again.

As can now be easily understood, the configuration according to the invention has a number of advantages. There is an advantage in that no tension or pressure exerted by the button 11 on the film 107 during a recording and thereby

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the film is kept in silence. Another advantage "exists in that the clamping handle 1 does not reach its Endstellimg after the first stroke, so that a user can recognize it whether he has made the first or the second stroke during a film transport. In addition, it is favorable that despite Due to the complicated control processes, only a few parts are required to control the image step «Another advantage is there in that the slide 1 can interact with the trigger, not shown, that it can only be used in the rest position of the slide 1 releases.

In addition, the cam guide 12d, 12e, 12f am Locking member 12 achieve that even with tolerances between Link 15, lever 14, tabs 14b and tabs 13a several times Bit by bit back and forth movement of the slide 1 at the end of the first stroke is avoided or blockages of the system be prevented. If, at the end of the first stroke, the link 15 would not yet be locked and the locking lug 14a would be in the position shown in solid lines, the locking member would be in a position that the tab 14b in the The notch between tab 12d and curve 12e would sink in and the TTase 14a would again block the disc 10 in the return direction. The first stroke would then have to be completed again. Conversely, the tab 14b would hold the ratchet tooth 12c over the curve 12e lifted off the disc 10.

-11-

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The edge 12f is effective when the transport slide 1 is moved during the release until the locking member 12 falls. In this case, the edge 12f takes over holding the return pawl 14 when triggered by Expiry of the link 15 was released. This enables that the slide 1 can return to its rest position after triggering.

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Claims (12)

AGFA-GEVAERT AKTIENGESELLSCHAFT $ 2. March 2315097 Leverkusen 10-eh-bo PF 802 / MF Expectations Photographic camera with a reciprocating transport handle, which has to be actuated twice for film transport, for a film, preferably packaged in cassettes, which has a perforation hole for each film, a button falling into a perforation hole controls a locking member in such a way that it is collapsed ends the film transport in a movable part during film transport, characterized in that control means (16a, 10a) are provided by which the transport handle (1, 10) is prevented from completely returning to its rest position after the first transport stroke and only after the second transport stroke is released to its rest position to fully expire. 2. Photographic camera according to claim 1, characterized in that that the transport handle is a slide with two drive elements, preferably racks (1a, 1b), wherein a drive element (la) via a carrier coupling (3, 4-, 5) that is only effective in the transport direction with the film reel drive (2) can be coupled and the other drive element (1b) has a control disc (10) in each direction of movement takes along, the locking member (12, 12c) at the end of the film transport, the control disk (10) in the film transport direction locks. 3. A photographic camera according to claim 2, characterized in that a control pin on the control disc (10) (10a) is provided, in the movement path of which is a lever (16) which is resiliently tensioned with the locking member (12) depending on the position of the locking member (12) can be pivoted, the lever (16) in FiImtransportrichtunp the control pin (10a) yields resiliently, but when moving in the opposite direction, the Control disc (10) and the handle (1) blocked before reaching their rest position. 4-. Photographic camera according to claim 3 »characterized in that that the lever (16) is pivoted into the locking position by the locking member (12) when the locking member (12) is out of engagement with the control disc (10). 5- photographic camera according to one of the preceding claims, characterized in that a toothing of the control disc (* 1O) and a locking tooth (12c) of the locking 409841/0447 Λ ¹⁴ " member (12) are shaped in such a way that the locking tooth (12c) which has sunk into the toothing only blocks the movement of the disk (10) in the film transport direction and not in the return direction. 6. Photographic camera according to claim 1 and 2, characterized in that that the film reel (2) via a toothed segment (3) and engaging with the toothed rack (1a) a ratchet drive (4-) is in operative connection. 7- Photographic camera in particular according to one of the claims 1, 2 or 6, characterized in that a control cam (3a) is connected to the ten-segment (3) which controls a ratchet drive (8) for a rotatable socket (7) for cube-shaped flash lamp carriers. 8. A photographic camera according to claim 7 »characterized in that the pawl drive (8) occurs only after every second transport stroke behind the next switching element (7a) of the socket 7 due to the shortened return path of the handle 1 after the first transport stroke. 9. Photographic camera, in particular according to one of the preceding Claims, <! = IcL by that a one Ratchet tooth (14-a) comprehensivez · * · by a during the transport process in one and in the opposite direction during the closure 409841/0447 ~ ¹⁵ ~ set direction movable member (15) pivotable lever (14) is provided, the ratchet tooth (14a) when they come into engagement with the control disc (10) this locks in the return direction. 10. A photographic camera, in particular according to claim 9 »characterized in that the locking member (12) Control cams (12d, 12e, 12f) are provided, which are used for alternating control in the event of malfunctions with a Stop (14b) of the lever (14) cooperate for automatic regulation. 13. Photographic camera according to claim 10, characterized in that that when the function of the lock-dependent member (15) is disturbed, the curve (12e) the ratchet tooth (14a) to fall into the disc (10), while at the same time the tab (14b) on the curve (12e) the Holds locking tooth (12c) out of engagement with the disc (10). 12. Photographic camera according to one of the preceding claims, characterized in that at the same time Actuation of the camera release and transport slide (1) and the resulting collapse of the locking tooth (12c) into the control disc (10) through the curve (12f) of the locking mechanism (14a) out of engagement with the control disc (10) is durable. 409841/0447 For this purpose 3 sheets of drawings n Blank page